diff options
| author | Eric DeVolder <eric.devolder@oracle.com> | 2017-01-25 09:31:15 -0600 |
|---|---|---|
| committer | Simon Horman <horms@verge.net.au> | 2017-01-26 11:22:26 +0100 |
| commit | 2cf7cb9a60802cfdbd4ec51439b05b5ac6293ee6 (patch) | |
| tree | 0f2b240544b8050bd2310cf1231d1ac30ffe2ee2 /kexec/kexec.h | |
| parent | 4eaa36cd01a972a602065ebade5ac46d1c81fba9 (diff) | |
kexec: implemented XEN KEXEC STATUS to determine if an image is loaded
Instead of the scripts having to poke at various fields we can
provide that functionality via the -S parameter.
kexec_loaded/kexec_crash_loaded exposes Linux kernel kexec/crash
state. It does not say anything about Xen kexec/crash state. So,
we need a special approach to get the latter. Though for
compatibility we provide similar functionality in kexec-tools
for the former.
This change enables the --status or -S option to work either
with or without Xen.
Returns 0 if the payload is loaded. Can be used in combination
with -l or -p to get the state of the proper kexec image.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Eric DeVolder <eric.devolder@oracle.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Diffstat (limited to 'kexec/kexec.h')
| -rw-r--r-- | kexec/kexec.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/kexec/kexec.h b/kexec/kexec.h index 9194f1c..2b06f59 100644 --- a/kexec/kexec.h +++ b/kexec/kexec.h @@ -219,6 +219,7 @@ extern int file_types; #define OPT_TYPE 't' #define OPT_PANIC 'p' #define OPT_KEXEC_FILE_SYSCALL 's' +#define OPT_STATUS 'S' #define OPT_MEM_MIN 256 #define OPT_MEM_MAX 257 #define OPT_REUSE_INITRD 258 @@ -245,8 +246,9 @@ extern int file_types; { "reuseinitrd", 0, 0, OPT_REUSE_INITRD }, \ { "kexec-file-syscall", 0, 0, OPT_KEXEC_FILE_SYSCALL }, \ { "debug", 0, 0, OPT_DEBUG }, \ + { "status", 0, 0, OPT_STATUS }, \ -#define KEXEC_OPT_STR "h?vdfxyluet:ps" +#define KEXEC_OPT_STR "h?vdfxyluet:psS" extern void dbgprint_mem_range(const char *prefix, struct memory_range *mr, int nr_mr); extern void die(const char *fmt, ...) @@ -311,5 +313,6 @@ int xen_present(void); int xen_kexec_load(struct kexec_info *info); int xen_kexec_unload(uint64_t kexec_flags); void xen_kexec_exec(void); +int xen_kexec_status(uint64_t kexec_flags); #endif /* KEXEC_H */ |